Conversion of a
Vintage Polaroid
Models • 95 • 150 • 110A/B • 900 • a100 • a250 • a350 • a450 • SX-70 • Holgaroid
Lensboard Swap
Because the bellows of my 110A were so dirty, and the 160 so clean, I figured I should keep the 160 and simply swap the bellows plates. If you have the opposite, where the 110A bellows are worth saving, you can unclip the bellows from the camera body by prying up the tabs of the metal mask along the 4 edges.
The 160 and the 110A bellows attachment is the same size, but not the same shape.
The 160 must be removed, and the 110A put in its place.
The 160 is held by 4 screws you can see here.
The 110A, also has 4 screws. In addition the lens is held by a retaining ring. Carefully unscrew the ring without scratching the lens, DO NOT remove it completely.

Open the front of the camera. Disconnect the flash cord.
Now the lens is held in place by the lens cap and retaining ring.
While holding the lens with one hand, finish removing the retaining ring.
Do not tilt the lens, pull it straight out or it may get stuck.
Keep the ring and lens together and in a safe place. While you're at it, give the lens a good cleaning.
If the bellows did not detach from the 160 and/or 110A lensboards when you removed the 4 screws, pry a little along the edges, should come right off.
If you get lost at anytime, you can always click the link at the bottom of the page to come back here.
The Steps
parts & labor
what's needed to get the job done
basics of function
overview of how to use the lens and shutter
the back, the strap, the finder
remove useless vintage roll-film parts; finder
lensboard swap
remove both lensboard assemblies
ready the body
remove leather; cut the side
ready the back
fitting the packfilm back; odds n ends
acquiring a 900 finder
removal & appropriation
fitting the finder
cut, fill, drill & fit
reset infinity
setting focus stop & tweaking finder
finishing touches
back door, odds n ends
completed
admire the work
Information …
The Models
These are the models I have personal experience with and are used within this site.




